Free, privacy-first
online tools.
Calculators, converters and generators.
Zero upload. Zero tracking.
Client-side processing • No cookies • Always free
Developer Tools
Formatters, encoders, converters and utilities for developers and engineers.
Security & Encryption
Password generators, hash calculators, encryption tools and key generation utilities.
PDF Tools
Merge, split, compress and transform PDF documents directly in your browser.
Image & Media
Edit, optimize, convert and analyze images and media files client-side.
Finance & Business
Investment calculators, business analysis tools, and loan estimators.
Health & Fitness
Body calculators, nutrition trackers and fitness planning tools.
Text & Data
Text manipulation, data conversion and generator utilities.
Featured Tools
JSON Formatter
Format, validate, minify and query your JSON data. Includes JSONPath tester for extracting specific ...
Password Generator
Generate strong, secure, and random passwords instantly with our online Password Generator tool. Cus...
PDF Merger
Merge multiple PDF files into one document. Drag & drop, reorder pages, and download the combined PD...
ROI Calculator
Free online ROI calculator. Calculate your return on investment percentage, profit/loss, and annuali...
BMI Calculator
Easily calculate your Body Mass Index (BMI) using our intuitive BMI Calculator. Just enter your heig...
Token Counter
Count tokens in your text for GPT, Claude and other AI models. Understand how your prompts are token...
Why Client-Side?
No upload
Your data never leaves your device. We don't have servers that see your files or inputs. Everything happens right here in your browser.
No tracking
We respect your privacy. No cookies, no analytics, no third-party scripts that follow you around the web.
Blazing Fast
Since there's no server communication, results are instant. No loading spinners or waiting for uploads.
Transparent
What you see is what you get. The code runs in your browser, so you can inspect it if you want. Predictable and secure behavior.